Sash-lock.



m. 708,9!9. Patented Sept. 9, I902; -J. T. PETHICK.

SASH LOCK.

Appl ton fildM 6 1902 (mi Model.)

UNITED TATES JOHN T. PETHICK, OF CARBONDALE, PENNSYLVANIA.

SASH-LOCK.

SI-ECIFIGATION forming part of Letters Patent N 0. 708,919, datedSeptember 9, 1902.

Application filed March 6,1902.

To all whom it vita/y concern.-

Be it known that I, JOHN T. PETHIOK, a citizen of the United States,residing at Carbondale, in the countyof Lackawanna and State ofPennsylvania, have invented a new and useful Improvement in Window-SashLooks or Fasteners, of which the followingis a specification.

My invention relates to an improvement in window-sash looks orfasteners; and its object is, primarily, of course to provide aneffective fastener which cannot be tampered with from the outside andone at the same 'time which will draw the meeting-rails of the sashessecurely together when fastened, whereby to prevent rattling and theingress of air.

Further objects are to provide a simple and neat-appearing fasteningwhich can be easily and quickly applied and will occupy as little spaceas possible and which is held in place largely by the position itoccupies in the sash without being entirely dependent upon the screws orscrew which holds it in place, as is usually the case with otherfasteners.

With the foregoing objects in view my invention consists in a cupadapted to enter a hole or socket in one of the vertical rails of theupper window-sash in connection with a pivoted catch which swings intoand out of the cup and when in the cup is below the outer surface of therail, so that it is protected and guarded, and a plate or block securedon the meeting-rail of the lower sash, with which the pivoted catchengages.

In the accompanying drawings, Figure l is a View of a portion of twowindow-sashes, showing my improved fastener or look in position therein.Fig. 2 is a vertical section through the sashes and fastener. Fig. 3 isa detached view of the cup, and Fig. 4 is a similar view of the catch.Fig. 5 is a detached view of the plate or block on the lower sash.

The lock or fastener consists of four parts, which will now bedescribed.

A is a cup whichmay be variously formed, but preferably cylindrical, andadapted to fit in a correspondingly-shaped hole 1, bored into thevertical rail of the upper sash, and sunk into the latter just so itsouter edge is Seiial No. 96,980. (No model.)

flush with the surface of the vertical rail. In the bottom of the cupand extending into the opposite sides a vertical slot 2 is formed forthe reception of the pivoted catch E, which latter constitutes thesecond element of the invention. This catch is provided at opposite endswith bearings 3 3,, which turn or rock in the portions of the slot 2 inthe flange of the cup, where they are held by the spring 0, which is thethird element of the invention. The function of the spring is not onlyto hold the catch in place, but also to retain it in either of itsextreme positions by engaging the angular inner edge of the catch. Thespring rests upon the bottom of the cup and may be inserted or slid inposition through a slot 4. The catch is capable of swinging ninetydegrees. When swung inward, it is completely housed by the cup andretained in that position by the spring, and it is out of the way orpath of the meeting-rail of the other sash. When swung outward in theposition of fastening or locking, the wall of the side or flange of thecup forms a stop in one direction and the spring prevents its accidentalinward movement. The catch is preferably provided with a knob 5, bywhich itis manipulated. At its lower end it has a notch 6, the purposeof which will be described hereinafter.

D indicates a plate or block placed upon the upper surface of themeeting-rail of the lower sash. This is provided with a cam-lug 7, whichis received in the notch d of the catch, and by its cam formation thecatch draws the meeting-rails of the sash securely together as it isswung outward. As the vertical rail of sashes always extend a littleback from the edge of the meeting-rail it is possible to place thisplate or block so that it overlaps this portion or projects over to thesurface of the vertical rail,thus guarding against the possibility ofoperating the catch or fastener from the outside.

One or two of these fastenings may be used on a window, as desired, andwhen used the fastener or look constitutes an effectual securing devicewhich cannot be operated from the outside and which at the same timewill prevent rattling of the windows or air from passing between themeeting-rails. At the same time the device is simple and can be easilyapplied to any window in use without the exercise of great mechanicalskill.

Various slight changes might be resorted to in the form and arrangementof the several elements of my invention without departure from thespirit of the invention, and hence I wish it understood thatI donotlimit myself to the precise details shown and tie scribed; hut,

Having fully described my invention, What I claim as new, and desire tosecure by Letters Patent, is-- 1. The combination with a plate or blockhaving a lug thereon, and adapted to he secured on the meeting-rail ofthe lower sash of a window, of a cup having a vertical slot in itsbottom and extending into its sides, a catch having bearings which turnor rock in the ends of said slot, said catch having a notch to receivethe lug on the plate or block on the other sash, and a spring forretaining the catch in one of two extreme positions.

2. The combination with a plate or block having a lug thereon, andadapted to be secured on the meeting-rail of the lower sash of a window,of a cup having a vertical slot in its bottom and extending into itssides, a catch having bearings which turn or rock in the ends of saidslot, said catch having a notch to receive the lug on the plate or blockon the other sash, a spring for retaining the catch in one of twoextreme positions, the position of the catch in the slot being such thatthe walls of the side or flange of the cup form a stop in one directionfor the catch.

3. The combination with a cup having a round flange or casing, of acatch pivoted therein and adapted to be housed in the cup when closed,said catch pivoted at one side of the cup-center and the flange orcasing limiting its movement when swung open or out- Ward.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN T. PETHIOK.

\Vitnesses:

JOHN F. REYNOLDS, J. A. GARDNER.

